基于MaxEnt滇牡丹潜在适生区研究  

A Study on the Potential Distribution of Paeonia delavayi based on MaxEnt Model

作　　者：陈剑[1,2] 原晓龙[1,2] 谭芮[1,2] 华梅[1,2] 杨卫[1,2] 孙金金[3] 呼延丽[1,2] 王娟 CHEN Jian;YUAN Xiao- long;TAN Rui;HUAMei;YANG Wei;SUN Jin- jin;HU YAN- li;WANG Juan(Yunnan Academy of Forestry,Kunming Yunnan 650201,P.R.China;Laboratory for Conservation and Breeding for Rare,Endangered and Endemic Forest Plants of State Forestry Administration/Yunnan Provincial Key Laboratory for Cultivation and Utilization of Forest Plants,Kunming Yunnan 650201,P.R.China;Southwest Forestry University,Kunming Yunnan 650224,P.R.China)

机构地区：[1]云南省林业科学院,云南昆明650201 [2]国家林业局云南珍稀濒特森林植物保护和繁育重点实验室,云南省森林植物培育与开发利用重点实验室,云南昆明650201 [3]西南林业大学,云南昆明650224

出　　处：《西部林业科学》2018年第3期24-29,共6页Journal of West China Forestry Science

基　　金：云南省科技厅国际合作项目(2015IA005); 国家林业局云南珍稀濒特森林植物保护和繁育重点实验室/云南省森林植物培育与开发利用重点实验室开放基金项目(ZZCX2016-10); 云南省生物多样性保护专项基金(2013)

摘　　要：滇牡丹是我国特有植物,天然分布区狭窄,野生资源正面临严重的人为破坏,对滇牡丹适生区进行研究,有助于滇牡丹的人工繁育、保护和利用。利用Max Ent模型,对全国19个气候因子和48个滇牡丹野生资源地理分布点进行分析,获得滇牡丹潜在适生区分布区范围,并进行可视化梯度分级。研究结果表明,全国范围内,滇牡丹潜在适生区仅分布于云南省、四川省、贵州省及西藏自治区,并主要集中分布于滇西北和滇中、滇东北的部分地区;19个气候因子中,温度季节性变化标准差、等温性、年均温变化范围这3个气候因子依次对滇牡丹天然分布起到最重要的作用,3个变量的值分别为4 100-4 900、46-49、22.50-26.00℃时,最适合滇牡丹的生长发育。研究结果可为滇牡丹种植选择优先区域提供科学参考。Paeonia delavayi is a endemic plant of China with narrow natural distribution area,and its natural resources are facing serious artificial damage. The study on Paeonia delavayi＇s potential distribution is very helpful for its propagation,protection,and utilization. Based on Max Ent model,this study analyzed 48 natural distribution spots of Paeonia delavayi and 19 climatic factors of China,outputted the map of Paeonia delavayi＇s potential distribution in China,got the several most important climate factors impacting Paeonia delavayi＇s distribution. The results showed that the optimal potential distribution area of Paeonia delavayi were only limited in Yunnan Province,Sichuan Province, Guizhou Province, Tibet Autonomous Region, and mostly concentrated in northwest part,central and northeast part of Yunnan Province; Temperature seasonality standard deviation,isothermality,temperature annual range were the 3 most prominent climate factors to Paeonia delavayi＇s potential distribution,and the optimum condition for Paeonia delavayi＇s growth were under these 3 factors with 4100-4900,46-49,and 22. 50-26. 00 ℃ respectively are. The result could be a scientific reference to selecting a optimum place for Paeonia delavayi planting.

关 键 词：滇牡丹 Maxent模型 潜在适生区 气候因子 

分 类 号：S685.11[农业科学—观赏园艺]